Luminescence quantum efficiency at 1.5 μm of Er3+-doped tellurite glass determined by thermal lens spectroscopy |
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| Affiliation: | 1. Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia;2. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;3. Basic and Applied Science Department, College of Engineering and Technology, Arab Academy for Science, Technology, and Maritime Transport, Cairo, Egypt |
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| Abstract: | Erbium doped tellurite glasses (TeO2 + Li2O + TiO2) were prepared by conventional melt-quenching method to study the influence of the Er3+ concentration on the luminescence quantum efficiency (η) at 1.5 μm. Absorption and luminescence data were used to characterize the samples, and the η parameter was measured using the well-known thermal lens spectroscopy. For low Er3+ concentration, the measured values are around 76%, and the concentration behavior of η shows Er–Er and Er–OH? interactions, which agreed with the measured lifetime values. |
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| Keywords: | Tellurite glass Erbium Luminescence quantum efficiency Thermal lens spectroscopy |
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